bone conduction

Bone conduction is the conduction of sound to the inner ear through the bones of the skull.

Bone conduction transmission can be used with individuals with normal or impaired hearing.

Bone conduction is used in the following applications:
– hands-free headsets or headphones
bone-anchored hearing aids with assistive listening devices
– specialized communication products (e.g. for underwater or high-noise environments)
– The Google Glass device uses bone conduction to prevent that received vocal content to be audible by outsiders